Amortizing your mortgage
Mortgage debt owed by Swiss homeowners is high in comparison with other countries, and in many cases, they don't fully pay it off. There are many reasons for this. That being said, paying off your mortgage can be a wise move. Learn at what time a voluntary payoff becomes advantageous, and under what circumstances it's better to stop trying to pay off a mortgage.
Source : https://www.credit-suisse.com/ch/fr/articles/private-banking/amortisation-der-hypothek-grunde-dafur-und-dagegen-201808.html